Inkjet printing method, apparatus, system, and computer readable storage medium

Abstract

This application discloses an inkjet printing method, apparatus, system, and computer-readable storage medium. The method includes: determining the ink droplet printing position corresponding to the inkjet slot based on the target film thickness of the substrate, the size information of the inkjet slot in the substrate, a preset droplet spacing, and a preset maximum film thickness; taking the inkjet volume corresponding to each inkjet nozzle in the inkjet head, and determining a target distribution relationship based on the inkjet volume; determining a compensation inkjet volume based on the target distribution relationship and the preset distribution relationship, and performing compensation inkjet printing on the droplet printing position based on the compensation inkjet volume. Controlling the film thickness by determining the droplet printing position corresponding to the inkjet slot provides higher accuracy than controlling the spacing, and further improves the accuracy of inkjet thickness control within the inkjet slot by determining the compensation inkjet volume during printing at the droplet printing position.

Description

Technical Field

[0001] This application relates to the field of substrate printing technology, specifically to an inkjet printing method, apparatus, system, and computer-readable storage medium. Background Technology

[0002] Currently, display substrates are mainly divided into side-by-side substrates and line bank substrates. Each bank slot of a line bank substrate contains ITO electrodes. During the fabrication of a line bank substrate, inkjet printing is performed in each bank slot (inkjet slot) according to the target inkjet thickness.

[0003] Current inkjet printing controls the total number of ink droplets printed in the bank by adjusting the spacing between each droplet, thereby controlling the inkjet thickness within the bank to achieve the target thickness. However, due to the limited precision of spacing adjustment, the accuracy of inkjet thickness control within the bank is relatively low. Therefore, improving the accuracy of inkjet thickness control within the bank is an urgent problem to be solved. Summary of the Invention

[0004] This application provides an inkjet printing method, apparatus, system, and computer-readable storage medium that can improve the accuracy of inkjet thickness control within the bank slot.

[0005] In a first aspect, embodiments of this application provide an inkjet printing method, the method comprising:

[0006] The ink droplet printing position corresponding to the ink jet groove is determined based on the target film thickness of the substrate, the size information of the ink jet groove in the substrate, the preset ink droplet spacing and the preset maximum film thickness.

[0007] Obtain the inkjet volume corresponding to each inkjet nozzle in the inkjet head, and determine the target distribution relationship based on the inkjet volume;

[0008] The compensation inkjet volume is determined based on the target distribution relationship and the preset distribution relationship, and the ink droplet printing position is compensated for inkjet printing based on the compensation inkjet volume.

[0009] Secondly, embodiments of this application provide an inkjet printing device including: an inkjet head, a driving module, and a calculation module;

[0010] The calculation module includes a first determining unit, a second determining unit, and a compensation unit;

[0011] The first determining unit is used to determine the ink droplet printing position corresponding to the ink jet groove based on the target film thickness of the substrate, the size information of the ink jet groove in the substrate, the preset ink droplet spacing and the preset maximum film thickness;

[0012] The driving module is used to drive the inkjet head to move to the ink droplet printing position;

[0013] The second determining unit is used to obtain the inkjet volume corresponding to each inkjet nozzle in the inkjet head, and determine the target distribution relationship based on the inkjet volume;

[0014] The compensation unit is used to determine the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship;

[0015] The inkjet head is used to perform inkjet printing at each of the ink droplet printing positions, and to perform compensated inkjet printing at the ink droplet printing positions based on the compensated inkjet volume.

[0016] Thirdly, embodiments of this application also provide an inkjet printing system, including a memory storing multiple instructions; a processor loads instructions from the memory to execute the steps of any inkjet printing method provided in embodiments of this application.

[0017] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a plurality of instructions adapted for loading by a processor to perform the steps of any inkjet printing method provided in embodiments of this application.

[0018] Fifthly, embodiments of this application also provide a computer program product, including a computer program or instructions, which, when executed by a processor, implement the steps in any inkjet printing method provided in embodiments of this application.

[0019] The scheme adopted in the application embodiment determines the ink droplet printing position corresponding to the inkjet slot based on the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset ink droplet spacing, and the preset maximum film thickness; it also takes the inkjet volume corresponding to each inkjet nozzle in the inkjet head and determines the target distribution relationship based on the inkjet volume; it determines the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship, and performs compensation inkjet printing on the ink droplet printing position based on the compensation inkjet volume. Controlling the film thickness by determining the ink droplet printing position corresponding to the inkjet slot provides higher accuracy than controlling the spacing, and by determining the compensation inkjet volume when printing at the ink droplet printing position, the accuracy of inkjet thickness control within the inkjet slot is further improved. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic flowchart of one embodiment of the inkjet printing method provided in this application.

[0022] Figure 2 This is a schematic diagram of the substrate structure provided in the embodiments of this application;

[0023] Figure 3 This is a schematic diagram of the structure of the inkjet printing device provided in the embodiments of this application;

[0024] Figure 4 This is a schematic diagram of the structure of the inkjet printing system provided in the embodiments of this application. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. At the same time, in the description of the embodiments of this application, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] This application provides an inkjet printing method, apparatus, system, and computer-readable storage medium.

[0027] Specifically, this application embodiment will be described from the perspective of an inkjet printing system, which can be integrated into an inkjet printing device, that is, the inkjet printing method of this application embodiment can be executed by the inkjet printing system.

[0028] The inkjet printing method provided in this application embodiment can be applied to inkjet printing devices, which may include devices such as printers and smart printers.

[0029] The following detailed description, in conjunction with the accompanying drawings, illustrates the process. In this application, an inkjet printing system is used as the executing entity in the embodiments. It should be noted that the order of description in the following embodiments is not intended to limit the preferred order of the embodiments. Although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in a different order than that shown in the drawings.

[0030] Please refer to Figure 1 The first embodiment of this inkjet printing method includes the following steps:

[0031] Step 101: Determine the ink droplet printing position corresponding to the ink jet groove based on the target film thickness of the substrate, the size information of the ink jet groove in the substrate, the preset ink droplet spacing and the preset maximum film thickness.

[0032] Step 102: Obtain the inkjet volume corresponding to each inkjet nozzle in the inkjet head, and determine the target distribution relationship based on the inkjet volume;

[0033] Step 103: Determine the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship, and perform compensation inkjet printing on the ink droplet printing position based on the compensation inkjet volume.

[0034] In this embodiment, the substrate to be inkjet printed is a line bank substrate. Each bank slot of the line bank substrate contains ITO electrodes. During the fabrication process, inkjet printing is performed in each bank slot to achieve the target film thickness. Correspondingly, the bank slot can be defined as an inkjet tank. When the substrate to be inkjet printed is placed in the printing position of the printer, the inkjet printing system in the printer acquires the pre-set target film thickness and the size information of the inkjet tank in the substrate. Based on the target film thickness and the size information of the inkjet tank, the system determines the target number of ink droplets to be printed in the inkjet tank. The inkjet printing system then prints the target number of ink droplets according to the inkjet thickness. The ink tank's dimensions, preset droplet spacing, and preset maximum film thickness determine the droplet arrangement in the inkjet tank. Based on the target number of droplets and the droplet arrangement, the inkjet printing system determines the printing positions of all droplets corresponding to the inkjet tank. When printing at each droplet printing position, it acquires the inkjet volume corresponding to each inkjet nozzle in the printhead and determines the target distribution relationship based on the inkjet volume of each nozzle. If the target distribution relationship meets preset conditions, it determines the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship, and performs compensation inkjet printing on the droplet printing positions based on the compensation inkjet volume.

[0035] It should be noted that the inkjet head is the inkjet device on the printer. The inkjet head includes multiple inkjet nozzles, which are used to output ink. The ink output from multiple inkjet nozzles converges into a single ink droplet, which is printed at the ink droplet printing position. The target distribution relationship is the normal distribution relationship that the inkjet volume corresponding to each inkjet nozzle in the inkjet head follows. The preset distribution relationship is the optimal normal distribution relationship that the inkjet volume corresponding to each inkjet nozzle in the inkjet head follows. Since the inkjet head may experience inkjet nozzle blockage during continuous operation, the ink droplet volume output by the inkjet head may not reach the preset target ink droplet volume. Therefore, it is necessary to determine the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship, and perform compensation inkjet printing on the ink droplet printing position based on the compensation inkjet volume, thereby improving the accuracy of inkjet thickness control in the inkjet chamber.

[0036] The inkjet printing system of this embodiment determines the ink droplet printing position corresponding to the inkjet slot based on the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset droplet spacing, and the preset maximum film thickness. When inkjet printing is performed at each droplet printing position, the inkjet volume corresponding to each inkjet nozzle in the inkjet head is obtained, and a target distribution relationship is determined based on the inkjet volume corresponding to each inkjet nozzle. If the target distribution relationship meets the preset conditions, a compensation inkjet volume is determined based on the target distribution relationship and the preset distribution relationship, and compensation inkjet printing is performed on the droplet printing position based on the compensation inkjet volume. Controlling the film thickness by determining the droplet printing position corresponding to the inkjet slot is more accurate than controlling the film thickness by controlling the spacing, and by determining the compensation inkjet volume when printing at the droplet printing position, the accuracy of inkjet thickness control in the inkjet slot is further improved.

[0037] Specifically, the following provides a detailed explanation of each step:

[0038] Step 101: Determine the ink droplet printing position corresponding to the ink jet groove based on the target film thickness of the substrate, the size information of the ink jet groove in the substrate, the preset ink droplet spacing and the preset maximum film thickness.

[0039] In this step, before inkjet printing, the relevant personnel first input the target film thickness of the ink to be printed in the inkjet tank of the substrate into the printer and place the substrate to be inkjet printed in the printing position of the printer. After the relevant personnel complete the above operations, they input a start command into the printer. When the inkjet printing system in the printer receives the start command, it obtains the pre-input target film thickness of the substrate, scans the substrate located in the printing position, determines the size information of the inkjet tank in the substrate, and then, based on the target film thickness of the substrate and the size information of the inkjet tank in the substrate, presets the droplet spacing and presets the maximum film thickness, and determines the ink droplet printing position corresponding to the inkjet tank.

[0040] It should be noted that the structure of the substrate is as follows: Figure 2As shown, the substrate is a line bank substrate with several bank grooves. Each bank groove has an ITO electrode and exposed glass. The surface of the line bank substrate is covered with photoresist. This invention requires inkjet printing on each bank groove on the line bank substrate based on the ink droplet printing position, so that the thickness of the film formed by the ink printed in each bank groove reaches the target film thickness.

[0041] It should be noted that the printer is equipped with a dimensional measuring device, which can be a mirror measuring instrument, laser rangefinder, image measuring instrument, etc. Since the dimensional information of each inkjet nozzle in the substrate is identical, the inkjet printing system in the printer only needs to measure the dimensional information of any one inkjet nozzle in the substrate. For example, taking an image measuring instrument as an example, the inkjet printing system uses a camera in the image measuring instrument on the printer to capture an image of the substrate, and uses image processing technology to analyze and measure any one inkjet nozzle in the image of the substrate to determine the dimensional information of the inkjet nozzle.

[0042] Specifically, step 101 includes:

[0043] Step 1011: Determine the number of target ink droplets to be printed in the inkjet trough based on the target film thickness of the substrate and the size information of the inkjet trough in the substrate.

[0044] In this step, the inkjet printing system determines the length and width of the inkjet chamber based on the dimensions of the inkjet chamber in the substrate. Then, based on the target film thickness of the substrate and the length and width of the inkjet chamber, it calculates the total inkjet volume corresponding to the thickness of the coating to be formed in the inkjet chamber to achieve the target film thickness. Essentially, multiplying the target film thickness of the substrate by the length and width of the inkjet chamber yields the total inkjet volume. The inkjet printing system then calculates the number of target ink droplets to be printed in the inkjet chamber based on the preset droplet volume and the total inkjet volume. Specifically, the preset droplet volume is the volume of one ink droplet printed by the printer, and this preset droplet volume can be adjusted according to specific circumstances. The inkjet printing system divides the total inkjet volume by the preset droplet volume to calculate the number of target ink droplets to be printed in the inkjet chamber.

[0045] Step 1012: Determine the number of rows of ink droplets and the number of ink droplets per row in the inkjet trough based on the size information of the inkjet trough, the preset ink droplet spacing, and the preset maximum film thickness;

[0046] In this step, the inkjet printing system calculates the maximum total inkjet volume corresponding to the inkjet tank based on the dimensions of the inkjet tank and the preset maximum film thickness. It then calculates the maximum number of ink droplets to be printed based on the maximum total inkjet volume and the preset droplet volume. Finally, the system determines the number of droplet rows and the number of droplets per row in the inkjet tank based on the dimensions of the inkjet tank, the maximum number of droplets, and the preset droplet spacing. It can be understood that the preset maximum film thickness is the maximum thickness of the film formed in the inkjet tank, and the preset droplet spacing is the distance between every two printed droplets during the inkjet printing process. The inkjet printing system determines the length and width of the inkjet tank based on its dimensions, determines the number of droplet rows based on the width and the preset droplet spacing, determines the number of droplet rows based on the number of droplet rows, length, and preset droplet spacing, and finally determines the droplet arrangement information in the inkjet tank based on the number of droplet rows and the number of droplets per row.

[0047] For example, the inkjet printing system has 5 rows of ink droplets in the inkjet tank, with 10 droplets per row. Correspondingly, the ink droplet arrangement information in the inkjet tank is a 5*10 droplet array, with the spacing between each droplet being a preset droplet spacing. It should be noted that the droplet arrangement information specifies the printing positions of the droplets in the inkjet tank. The even distribution of these printing positions within the inkjet tank improves the uniformity of the droplets during subsequent inkjet printing, thereby enhancing the uniformity of the inkjet film thickness within the inkjet tank.

[0048] Step 1013: Divide the inkjet trough into an ink droplet arrangement array according to the number of ink droplet rows and the number of ink droplets per row;

[0049] In this step, the inkjet printing system acquires the number of ink droplet rows and the number of ink droplets per row from the ink droplet arrangement information. Based on the number of ink droplet rows and the number of ink droplets per row, the inkjet tank is divided to obtain an ink droplet arrangement array. Specifically, the printer is equipped with a scanning device. The inkjet printing system acquires an image of the inkjet tank through the scanning device and divides the image of the inkjet tank according to the number of ink droplet rows and the number of ink droplets per row to determine the ink droplet arrangement array on the image of the inkjet tank. This facilitates subsequent printing based on the ink droplet arrangement array on the image of the inkjet tank, improving printing accuracy and efficiency.

[0050] Step 1014: Determine the ink droplet printing position corresponding to the inkjet slot in the ink droplet arrangement array based on the target number of ink droplets, the number of ink droplet rows, and the number of ink droplets per row.

[0051] In this step, the inkjet printing system determines the target print row and target print column in the droplet array based on the target number of ink droplets, the number of droplet rows, and the number of ink droplets per row. Then, based on the target print row and target print column, it determines the corresponding ink droplet printing position in the inkjet tank and performs inkjet printing at the ink droplet printing position.

[0052] Furthermore, determining the ink droplet printing position corresponding to the inkjet slot in the ink droplet arrangement array based on the target number of ink droplets, the number of ink droplet rows, and the number of ink droplets per row includes:

[0053] Step 10141: Calculate the threshold range of ink droplet count based on the number of ink droplet rows and the number of ink droplets per row;

[0054] In this step, the inkjet printing system calculates a droplet number range threshold based on the number of droplet rows and the number of droplets per row. Specifically, the inkjet printing system multiplies the number of droplet rows and the number of droplets per row to obtain a droplet number threshold set, and then determines the droplet number range threshold based on the droplet number threshold set. For example, if the number of droplet rows is 5 and the number of droplets per row is n, the droplet number threshold set includes: n, 2n, 3n, 4n, 5n, and the droplet number range threshold includes (0,n], (n,2n], (2n,3n], (3n,4n], (4n,5n).

[0055] Step 10142: Compare the target number of ink droplets with the threshold value of the ink droplet number range, and determine the target print line in the ink droplet array based on the comparison result and the number of ink droplet rows;

[0056] In this step, the inkjet printing system compares the target number of ink droplets with each droplet number range threshold, and determines which droplet number range threshold the target number of ink droplets falls into based on the comparison results. Then, based on the corresponding droplet number range threshold and the number of droplet rows, the system determines the target print row in the droplet array.

[0057] Further, step 10142 includes:

[0058] Step 101421: Determine the number of print lines based on the comparison results, and determine the print line distribution rule based on the number of ink droplet lines;

[0059] In this step, the inkjet printing system determines which droplet number range threshold the target droplet number falls into based on the comparison results. Then, it determines the number of print lines based on the corresponding droplet number range threshold and establishes a print line distribution rule based on the number of droplet lines. Specifically, the inkjet printing system obtains the maximum value within the droplet number range threshold that the target droplet number falls into, calculates the multiple relationship between this maximum value and the number of droplets per line, and then determines the number of print lines based on this multiple relationship. For example, if the multiple relationship between the maximum value and the number of droplets per line is 2, the number of print lines is determined to be 2; if the multiple relationship is 3, the number of print lines is determined to be 3. The inkjet printing system pre-sets print line distribution rules corresponding to odd and even droplet number rows, ensuring that the lines to be printed are evenly distributed within the inkjet chamber.

[0060] Step 101422: Determine the target print line in the ink droplet array according to the number of print lines and the print line distribution rule.

[0061] In this step, the inkjet printing system determines the target print line in the droplet array based on the number of print lines and the print line distribution rule. Specifically, when the inkjet printing system determines that the print line distribution rule corresponds to an odd number of droplet lines, it determines whether the number of print lines is odd or even. If the number of print lines is odd and equal to 1, the middle line in the droplet array is selected as the target print line. If the number of print lines is odd and not equal to 1, the middle line in the droplet array is first selected as the target print line, and then the remaining target print lines are evenly distributed on both sides of the middle line. If the number of print lines is even, the middle line in the droplet array is not selected as the target print line, and the target print lines are evenly distributed on both sides of the middle line. When the inkjet printing system determines that the print line distribution rule corresponds to an even number of ink droplet rows, it determines whether the number of print lines is odd or even. If the number of print lines is odd and equal to 1, it selects one of the two middle rows in the ink droplet array as the target print line. If the number of print lines is odd and not equal to 1, it first splits the number of print lines into 1 and an even number, evenly distributes the even number of target print lines on both sides of the row symmetry axis of the ink droplet array, and then randomly selects the remaining target print line from the remaining rows in the ink droplet array. If the number of print lines is even, it evenly distributes the target print lines on both sides of the row symmetry axis of the ink droplet array.

[0062] For example, when the number of ink droplet rows is 5, the inkjet printing system determines the print line distribution rule as the print line distribution rule corresponding to an odd number of ink droplet rows. When the number of print lines is 1, the middle row, i.e., the 3rd row, is selected as the target print line in the ink droplet array. When the number of print lines is 2, the middle row of the ink droplet array is not selected as the target print line, and the target print line is evenly distributed on both sides of the middle row, i.e., the 2nd and 4th rows are selected as the target print lines. When the number of print lines is 3, the middle row is also selected in the ink droplet array... That is, the third row is selected as the target printing row, and the remaining target printing rows are evenly distributed on both sides of the middle row. In other words, the second and fourth rows are selected as the target printing rows, or the first and fifth rows are selected as the target printing rows. When the number of printing rows is 4, the middle row of the droplet array is not selected as the target printing row, and the target printing rows are evenly distributed on both sides of the middle row. That is, the first, second, fourth and fifth rows are selected as the target printing rows. When the number of printing rows is 5, each row of the droplet array is selected as the target printing row.

[0063] For example, when the number of ink droplet rows is 4, the inkjet printing system determines the print row distribution rule as the print row distribution rule corresponding to an even number of ink droplet rows. When the number of print rows is 1, one of the two middle rows in the ink droplet array is selected as the target print row, that is, the 2nd or 3rd row is selected as the target print row. When the number of print rows is 2, the target print rows are evenly distributed on both sides of the row symmetry axis of the ink droplet array, that is, the 1st and 4th rows or the 2nd and 3rd rows are selected as the target print rows. When the number of print rows is 3, the number of print rows is first split into 1 and 2, and the 2 target print rows are evenly distributed on both sides of the row symmetry axis of the ink droplet array, that is, the 1st and 4th rows or the 2nd and 3rd rows are selected as the target print rows. Then, the remaining 1 target print row is randomly determined from the remaining rows in the ink droplet array. When the number of print rows is 4, each row of the ink droplet array is used as a target print row.

[0064] Step 10143: Determine the target print column in the target print row based on the target number of ink droplets and the number of ink droplets per row;

[0065] In this step, the inkjet printing system pre-sets print column distribution rules corresponding to odd and even numbers of ink droplets per row. These rules ensure that the areas to be printed are evenly distributed within the target print row. Based on the target number of ink droplets and the print column distribution rules corresponding to the number of ink droplets per row, the inkjet printing system determines the target print column within the target print row.

[0066] Further, step 10143 includes:

[0067] Step 101431: Determine the printing column distribution rule based on the number of ink droplets per row;

[0068] In this step, the inkjet printing system determines whether the number of ink droplets per row is odd or even, and then determines whether the print column distribution rule corresponds to an odd number of ink droplets per row or an even number of ink droplets per row.

[0069] Step 101432: Compare the target number of ink droplets with the number of ink droplets per line;

[0070] In this step, the inkjet printing system compares the target number of ink droplets with the number of ink droplets per line.

[0071] Step 101433: If the target number of ink droplets is not greater than the number of ink droplets per row, then determine the target printing column in the target printing row according to the printing column distribution rule;

[0072] In this step, if the inkjet printing system determines that the target number of ink droplets is not greater than the number of ink droplets per row, it means that the number of target print rows is 1. The target print column is then determined within the target print rows according to the print column distribution rules. Specifically, when the inkjet printing system determines that the print column distribution rule corresponds to an odd number of ink droplets per row, it determines whether the target number of ink droplets is odd or even. If the target number of ink droplets is odd and is 1, the middle column is selected as the target print column. If the target number of ink droplets is odd and not 1, the middle column is first selected as the target print column, and the remaining target print columns are evenly distributed on both sides of the middle column. If the target number of ink droplets is even, the middle column is not selected as a target print column, and the target print columns are evenly distributed on both sides of the middle column. When the inkjet printing system determines that the print row distribution rule is the print row distribution rule corresponding to an even number of ink droplets per row, it determines whether the target ink droplet number is odd or even. When the target ink droplet number is odd and equal to 1, one of the two middle columns in the target print column is selected as the target print column. When the target ink droplet number is odd and not equal to 1, the target ink droplet number is first split into 1 and an even number. The even number of target print columns are evenly distributed on both sides of the column symmetry axis of the target print row. Then, the remaining target print column is randomly determined from the remaining rows in the target print row. When the target ink droplet number is even, the target print column is evenly distributed on both sides of the row symmetry axis of the target print row.

[0073] For example, when the number of ink droplets per row is 5, the inkjet printing system determines the print column distribution rule as the print column distribution rule corresponding to an odd number of ink droplets per row. When the target number of ink droplets is 1, the middle column, i.e., the 3rd column, is selected as the target print row. When the target number of ink droplets is 2, the middle column of the target print row is not selected as the target print column, and the target print columns are evenly distributed on both sides of the middle column, i.e., the 2nd and 4th columns are selected as the target print columns. When the target number of ink droplets is 3, the middle column is also selected as the target print row. That is, the 3rd column is selected as the target print row, and the remaining target print rows are evenly distributed on both sides of the middle column. In other words, the 2nd and 4th columns are selected as the target print columns, or the 1st and 5th columns are selected as the target print rows. When the target ink droplet count is 4, the middle column of the target print row is not selected as the target print column, and the target print columns are evenly distributed on both sides of the middle column. In other words, the 1st, 2nd, 4th and 5th columns are selected as the target print columns. When the target ink droplet count is 5, each column of the target print row is selected as the target print column.

[0074] Exemplarily, when the number of ink droplets per row is 4, the inkjet printing system determines the printing column distribution rule as the printing column distribution rule corresponding to an even number of ink droplets per row. When the target number of ink droplets is 1, one of the middle two columns in the target printing row is selected as the target printing column, that is, the second column or the third column is selected as the target printing column. When the target number of ink droplets is 2, the target printing columns are evenly distributed on both sides of the column symmetry axis of the target printing row, that is, the first column and the fourth column are selected as the target printing columns or the second column and the third column are selected as the target printing columns. When the target number of ink droplets is 3, the target number of ink droplets is first split into 1 and 2, and the two columns of target printing rows are evenly distributed on both sides of the column symmetry axis of the target printing row, that is, the first column and the fourth column are selected as the target printing columns or the second column and the third column are selected as the target printing columns, and then the remaining one column of target printing column is randomly determined among the remaining columns in the target printing row. When the target number of ink droplets is 4, each column of the target printing row is used as the target printing column.

[0075] Further, the printing column distribution rule can also be: the number of ink droplets per row is n, the target number of ink droplets is x. When x ≥ n - x, that is, the number of target ink droplets in the target printing row is greater than or equal to the number of empty ink droplets, so the target printing row is divided into n - x + 1 parts, and each part has n / (n - x + 1) ink droplet positions. Then, after printing each ink droplet, one is emptied (taking an integer). In this case, there will be a situation of non - divisibility. In order to further optimize the position of the empty ink droplets to be evenly distributed in the middle as much as possible, the remainder of needs to be defined as Q. At the starting position, Q / 2 (taking an integer) ink droplets need to be printed first, and then after printing each ink droplet, one is emptied (taking an integer); when x < n - x, that is, the number of target ink droplets in the target printing row is less than the number of empty ink droplets, so the target printing row is divided into x + 1 parts, and each part has n / (x + 1) ink droplet positions. Then, after emptying each ink droplet, one ink droplet is printed (taking an integer). In this case, there will be a situation of non - divisibility. In order to further optimize the position of the empty ink droplets to be evenly distributed in the middle as much as possible, the remainder of needs to be defined as Q. At the starting position, Q / 2 (taking an integer) ink droplets need to be printed first, and then after emptying each ink droplet, one ink droplet is printed (taking an integer).

[0076] Step 101434, if the target number of ink droplets is greater than the number of ink droplets per row, all printing rows and partial printing rows are determined in the target printing row. All columns in all printing rows are determined as target printing columns, and the target printing columns in the partial printing rows are determined according to the printing column distribution rule.

[0077] In this step, if the inkjet printing system determines that the target number of ink droplets is greater than the number of ink droplets per row, it means that the number of target print rows is greater than 1. The system then determines all print rows and partial print rows within the target print rows. All columns in the all print rows are designated as target print columns. The remaining number of ink droplets is obtained by subtracting the total number of printable ink droplets from the target number of ink droplets in all print rows. This remaining number of ink droplets is used as the target number of ink droplets for the partial print rows. Based on the target number of ink droplets and the print column distribution rules, the target print columns within the partial print rows are determined. Specifically, for an odd number of print rows, the inkjet printing system designates the target print rows distributed in the middle row or on either side of the middle row as partial print rows, and the remaining target print rows as all print rows. For an even number of print rows, the inkjet printing system designates one of the two middle target print rows as a partial print row, and the remaining target print rows as all print rows.

[0078] Step 10144: Determine the ink droplet printing position corresponding to the inkjet slot based on the target print row and the target print column.

[0079] In this step, after determining the target print rows and the target print columns corresponding to each target print row, the inkjet printing system obtains the droplet arrangement array of the inkjet tank obtained in the previous step, and determines the print position of the droplets based on the target print rows and target print columns in the droplet arrangement array of the inkjet tank.

[0080] Furthermore, the inkjet printing system controls the printer's printhead to sequentially stop above each droplet position on the droplet array in the inkjet tank according to a preset printing sequence. It acquires the row and column information of the droplet position that the printhead is aligned with, compares this row and column information with the row and column information corresponding to the droplet printing position, and then detects whether the droplet position is a droplet printing position. When it is determined that the detected droplet position is a droplet printing position, inkjet printing is performed on the droplet printing position according to the preset droplet volume until all droplet printing positions have been inkjet printed.

[0081] Step 102: Obtain the inkjet volume corresponding to each inkjet nozzle in the inkjet head, and determine the target distribution relationship based on the inkjet volume;

[0082] In this step, when the inkjet printing system controls the printer to perform inkjet printing at each ink droplet printing position in the inkjet tank, it acquires the inkjet volume corresponding to each inkjet nozzle in the inkjet head, and determines the target distribution relationship based on the inkjet volume corresponding to each inkjet nozzle. It can be understood that for each ink droplet printing position, the inkjet printing system generates corresponding voltage information based on the preset target ink droplet volume, and sends the voltage signal to the inkjet head of the printer, causing each inkjet nozzle in the inkjet head to output the corresponding volume of ink. However, because the inkjet head may experience nozzle blockage during continuous operation, the ink droplet volume output by the inkjet head may not reach the preset target ink droplet volume. Therefore, it is necessary to determine the target distribution relationship based on the inkjet volume corresponding to each inkjet nozzle to facilitate analysis of whether the ink droplet volume output by the inkjet head reaches the preset target ink droplet volume.

[0083] Specifically, step 102 includes:

[0084] Step 1021: Obtain the ink volume corresponding to each ink nozzle in the inkjet head, and calculate the mean and standard deviation of the ink volume corresponding to the inkjet head based on the ink volume corresponding to each ink nozzle.

[0085] In this step, the inkjet printing system acquires the inkjet volume corresponding to each inkjet nozzle in the printhead, and calculates the mean and standard deviation of the inkjet volume for each nozzle. The formulas for calculating the mean and standard deviation of the inkjet volume are as follows:

[0086]

[0087]

[0088] Where, μ v0 For inkjet volume average and σ v0 Let V[j] be the standard deviation of inkjet volume, m be the number of inkjet nozzles in the inkjet head, and V[j] represent the volume of the ink droplet ejected from the j-th inkjet nozzle in the inkjet head.

[0089] Step 1022: Based on the mean inkjet volume and the standard deviation of inkjet volume, determine the target distribution relationship corresponding to the inkjet head.

[0090] In this step, the inkjet printing system determines the target distribution relationship corresponding to the inkjet head based on the mean and standard deviation of the inkjet volume. The target distribution relationship is a normal distribution, expressed as: f(x)=\frac{1}{{σ v0 \sqrt{2\pi}}}e^{-\frac{(V[j]-μ v0 )^2}{2σ v0 ^2}};where, μv0 σ represents the average inkjet volume. v0 For inkjet volume standard deviation, \frac is used to represent fractions, and its full form is "\frac{numerator}{denominator}", while \sqrt is used to represent square roots, and its full form is "\sqrt{radicand}".

[0091] Step 103: Determine the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship, and perform compensation inkjet printing on the ink droplet printing position based on the compensation inkjet volume.

[0092] In this step, after obtaining the target distribution relationship corresponding to the inkjet head, the inkjet printing system compares the target distribution relationship with the preset distribution relationship. If the comparison result shows that the target distribution relationship meets the preset conditions, the system determines the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship, and performs compensation inkjet printing on the ink droplet printing position based on the compensation inkjet volume. If the comparison result shows that the target distribution relationship does not meet the preset conditions, it means that the ink droplet volume output by the inkjet head reaches the preset target ink droplet volume, or the difference between the ink droplet volume output by the inkjet head and the preset target ink droplet volume is within the preset range. In this case, the inkjet printing system determines that compensation inkjet printing is not required, and directly performs inkjet printing on the next ink droplet printing position.

[0093] Specifically, step 103 includes:

[0094] Step 1031: Obtain the maximum distribution probability of the target in the target distribution relationship, and the preset maximum distribution probability in the preset distribution relationship;

[0095] In this step, the inkjet printing system obtains the target maximum distribution probability in the target distribution relationship and the preset maximum distribution probability in the preset distribution relationship; specifically, the target distribution relationship is expressed as: f(x)=\frac{1}{{σ v0 \sqrt{2\pi}}}e^{-\frac{(V[j]-μ v0 )^2}{2σ v0 ^2}}, the pre-defined distribution relationship is expressed as: F(x)=\frac{1}{{σ v1 \sqrt{2\pi}}}e^{-\frac{(V[j]-μ v1 )^2}{2σ v1 ^2}}, where μ v1 σ is the preset average inkjet volume. v1 The preset inkjet volume standard deviation; the inkjet printing system can determine a target maximum distribution probability based on the target distribution relationship, and can determine a preset maximum distribution probability based on the preset distribution relationship.

[0096] Step 1032: If the target maximum distribution probability is greater than the preset maximum distribution probability, calculate the difference between the target maximum distribution probability and the preset maximum distribution probability, and determine the compensation inkjet volume based on the preset mapping information and the difference.

[0097] In this step, the inkjet printing system obtains the target maximum distribution probability in the target distribution relationship and the preset maximum distribution probability in the preset distribution relationship. Then, it compares the target maximum distribution probability with the preset maximum distribution probability. If it is determined that the target maximum distribution probability is greater than the preset maximum distribution probability, the difference between the target maximum distribution probability and the preset maximum distribution probability is calculated. Based on the preset mapping information and the difference, the compensation inkjet volume is determined. The preset mapping information is a pre-set relationship table between the difference between the target maximum distribution probability and the preset maximum distribution probability and the compensation inkjet volume. After obtaining the difference, the inkjet printing system can directly query the relationship table to determine the corresponding compensation inkjet volume.

[0098] Step 1033: Perform compensated inkjet printing on the ink droplet printing position based on the compensated inkjet volume.

[0099] In this step, after determining the compensation inkjet volume, the inkjet printing system determines the corresponding voltage signal based on the compensation inkjet volume and sends the voltage signal to the inkjet head of the printer, so that the inkjet head outputs ink of the compensation inkjet volume to print at the ink droplet printing position.

[0100] The inkjet printing system of this embodiment determines the ink droplet printing position corresponding to the inkjet slot based on the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset droplet spacing, and the preset maximum film thickness; it obtains the inkjet volume corresponding to each inkjet nozzle in the inkjet head and determines the target distribution relationship based on the inkjet volume; it determines the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship, and performs compensation inkjet printing on the droplet printing position based on the compensation inkjet volume. By determining the droplet printing position corresponding to the inkjet slot to control the film thickness, the film thickness control accuracy is higher than that of controlling the spacing, and by determining the compensation inkjet volume when printing at the droplet printing position, the accuracy of inkjet thickness control within the inkjet slot is further improved.

[0101] This embodiment also provides an inkjet printing device, which may specifically include devices such as printers or smart printers. Figure 3 As shown, the inkjet printing device may include:

[0102] The inkjet head, the drive module, and the calculation module, wherein the calculation module includes a first determining unit, a second determining unit, and a compensation unit;

[0103] The first determining unit is used to determine the ink droplet printing position corresponding to the ink jet groove based on the target film thickness of the substrate, the size information of the ink jet groove in the substrate, the preset ink droplet spacing and the preset maximum film thickness;

[0104] The driving module is used to drive the inkjet head to move to the ink droplet printing position;

[0105] The second determining unit is used to obtain the inkjet volume corresponding to each inkjet nozzle in the inkjet head, and determine the target distribution relationship based on the inkjet volume;

[0106] The compensation unit is used to determine the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship;

[0107] The inkjet head is used to perform inkjet printing at each of the ink droplet printing positions, and to perform compensated inkjet printing at the ink droplet printing positions based on the compensated inkjet volume.

[0108] In an optional example, the first determining unit is also used for:

[0109] Based on the target film thickness of the substrate and the size information of the inkjet trough in the substrate, determine the number of target ink droplets to be printed in the inkjet trough.

[0110] Based on the size information of the inkjet trough, the preset droplet spacing, and the preset maximum film thickness, determine the number of rows of ink droplets and the number of droplets per row in the inkjet trough;

[0111] The inkjet trough is divided into an ink droplet arrangement array based on the number of ink droplet rows and the number of ink droplets per row;

[0112] Based on the target number of ink droplets, the number of ink droplet rows, and the number of ink droplets per row, the ink droplet printing position corresponding to the inkjet slot is determined in the ink droplet arrangement array.

[0113] In an optional example, the first determining unit is also used for:

[0114] Based on the number of ink droplet rows and the number of ink droplets per row, a threshold range for the number of ink droplets is calculated;

[0115] The target number of ink droplets is compared with the threshold value of the ink droplet number range, and the target print line is determined in the ink droplet array based on the comparison result and the number of ink droplet rows.

[0116] Based on the target number of ink droplets and the number of ink droplets per row, determine the target print column in the target print row;

[0117] The ink droplet printing position corresponding to the inkjet slot is determined based on the target print row and the target print column.

[0118] In an optional example, the first determining unit is also used for:

[0119] The number of print lines is determined based on the comparison results, and the print line distribution rule is determined based on the number of ink droplet lines.

[0120] The target print line is determined in the ink droplet array based on the number of print lines and the print line distribution rule.

[0121] In an optional example, the first determining unit is also used for:

[0122] The printing column distribution rule is determined based on the number of ink droplets per row;

[0123] Compare the target number of ink droplets with the number of ink droplets per line;

[0124] If the target number of ink droplets is not greater than the number of ink droplets per row, then the target printing column is determined in the target printing row according to the printing column distribution rule;

[0125] If the target number of ink droplets is greater than the number of ink droplets per row, then all print rows and a portion of print rows are determined in the target print rows. All columns in all print rows are determined as target print columns, and the target print columns in the portion of print rows are determined according to the print column distribution rules.

[0126] In an optional example, the second determining unit is also used for:

[0127] Obtain the ink volume corresponding to each ink nozzle in the inkjet head, and calculate the mean and standard deviation of the ink volume corresponding to the inkjet head based on the ink volume corresponding to each ink nozzle.

[0128] Based on the mean inkjet volume and the standard deviation of inkjet volume, the target distribution relationship corresponding to the inkjet head is determined.

[0129] In an optional example, the compensation unit is also used for:

[0130] Obtain the maximum distribution probability of the target in the target distribution relationship, and the preset maximum distribution probability in the preset distribution relationship;

[0131] If the target maximum distribution probability is greater than the preset maximum distribution probability, then the difference between the target maximum distribution probability and the preset maximum distribution probability is calculated, and the compensation inkjet volume is determined based on the preset mapping information and the difference.

[0132] Compensated inkjet printing is performed on the ink droplet printing position based on the compensated inkjet volume.

[0133] The solution in this embodiment controls the film thickness by determining the ink droplet printing position corresponding to the inkjet tank. This method is more accurate than controlling the film thickness by controlling the spacing. Furthermore, by determining the compensation inkjet volume when printing at the ink droplet printing position, the accuracy of inkjet thickness control within the inkjet tank is further improved.

[0134] Accordingly, embodiments of this application also provide an inkjet printing system, such as... Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of an inkjet printing system provided in an embodiment of this application. The inkjet printing system 1100 includes a processor 1101 with one or more processing cores, a memory 1102 with one or more computer-readable storage media, and a computer program stored on the memory 1102 and executable on the processor. The processor 1101 and the memory 1102 are electrically connected. Those skilled in the art will understand that the inkjet printing system structure shown in the figure does not constitute a limitation on the inkjet printing system, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0135] The processor 1101 is the control center of the inkjet printing system 1100. It connects to various parts of the electronic device 1100 via various interfaces and lines. By running or loading software programs and / or units stored in the memory 1102, and by calling data stored in the memory 1102, it executes various functions of the electronic device 1100 and processes data, thereby providing overall monitoring of the inkjet printing system 1100. The processor 1101 can be a CPU, GPU, network processor (NP), etc., and can implement or execute the methods, steps, and logic diagrams disclosed in the embodiments of this application.

[0136] In this embodiment, the processor 1101 in the inkjet printing system 1100 loads the instructions corresponding to the processes of one or more applications into the memory 1102 according to the following steps, and the processor 1101 runs the applications stored in the memory 1102 to realize various functions, such as:

[0137] The ink droplet printing position corresponding to the ink jet groove is determined based on the target film thickness of the substrate, the size information of the ink jet groove in the substrate, the preset ink droplet spacing and the preset maximum film thickness.

[0138] Obtain the inkjet volume corresponding to each inkjet nozzle in the inkjet head, and determine the target distribution relationship based on the inkjet volume;

[0139] The compensation inkjet volume is determined based on the target distribution relationship and the preset distribution relationship, and the ink droplet printing position is compensated for inkjet printing based on the compensation inkjet volume.

[0140] In an optional example, it also includes:

[0141] Based on the target film thickness of the substrate and the size information of the inkjet trough in the substrate, determine the number of target ink droplets to be printed in the inkjet trough.

[0142] Based on the size information of the inkjet trough, the preset droplet spacing, and the preset maximum film thickness, determine the number of rows of ink droplets and the number of droplets per row in the inkjet trough;

[0143] The inkjet trough is divided into an ink droplet arrangement array based on the number of ink droplet rows and the number of ink droplets per row;

[0144] Based on the target number of ink droplets, the number of ink droplet rows, and the number of ink droplets per row, the ink droplet printing position corresponding to the inkjet slot is determined in the ink droplet arrangement array.

[0145] In an optional example, it also includes:

[0146] Based on the number of ink droplet rows and the number of ink droplets per row, a threshold range for the number of ink droplets is calculated;

[0147] The target number of ink droplets is compared with the threshold value of the ink droplet number range, and the target print line is determined in the ink droplet array based on the comparison result and the number of ink droplet rows.

[0148] Based on the target number of ink droplets and the number of ink droplets per row, determine the target print column in the target print row;

[0149] The ink droplet printing position corresponding to the inkjet slot is determined based on the target print row and the target print column.

[0150] In an optional example, it also includes:

[0151] The number of print lines is determined based on the comparison results, and the print line distribution rule is determined based on the number of ink droplet lines.

[0152] The target print line is determined in the ink droplet array based on the number of print lines and the print line distribution rule.

[0153] In an optional example, it also includes:

[0154] The printing column distribution rule is determined based on the number of ink droplets per row;

[0155] Compare the target number of ink droplets with the number of ink droplets per line;

[0156] If the target number of ink droplets is not greater than the number of ink droplets per row, then the target printing column is determined in the target printing row according to the printing column distribution rule;

[0157] If the target number of ink droplets is greater than the number of ink droplets per row, then all print rows and a portion of print rows are determined in the target print rows. All columns in all print rows are determined as target print columns, and the target print columns in the portion of print rows are determined according to the print column distribution rules.

[0158] In an optional example, it also includes:

[0159] Obtain the ink volume corresponding to each ink nozzle in the inkjet head, and calculate the mean and standard deviation of the ink volume corresponding to the inkjet head based on the ink volume corresponding to each ink nozzle.

[0160] Based on the mean inkjet volume and the standard deviation of inkjet volume, the target distribution relationship corresponding to the inkjet head is determined.

[0161] In an optional example, it also includes:

[0162] Obtain the maximum distribution probability of the target in the target distribution relationship, and the preset maximum distribution probability in the preset distribution relationship;

[0163] If the target maximum distribution probability is greater than the preset maximum distribution probability, then the difference between the target maximum distribution probability and the preset maximum distribution probability is calculated, and the compensation inkjet volume is determined based on the preset mapping information and the difference.

[0164] Compensated inkjet printing is performed on the ink droplet printing position based on the compensated inkjet volume.

[0165] Therefore, controlling the film thickness by determining the ink droplet printing position corresponding to the inkjet tank is more accurate than controlling the film thickness by controlling the spacing. Furthermore, by determining the compensation inkjet volume when printing at the ink droplet printing position, the accuracy of inkjet thickness control within the inkjet tank is further improved.

[0166] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0167] Optional, such as Figure 4 As shown, the inkjet printing system 1100 also includes: a touch screen display 1103, an radio frequency circuit 1104, an audio circuit 1105, an input unit 1106, and a power supply 1107. The processor 1101 is electrically connected to the touch screen display 1103, the radio frequency circuit 1104, the audio circuit 1105, the input unit 1106, and the power supply 1107. Those skilled in the art will understand that... Figure 4 The inkjet printing system structure shown does not constitute a limitation on electronic devices and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0168] The touch display screen 1103 can be used to display a graphical user interface (GUI) and receive operation commands generated by the user interacting with the GUI. The touch display screen 1103 may include a display panel and a touch panel. The display panel can be used to display information input by the user or information provided to the user, as well as various graphical user interfaces of the electronic device. These graphical user interfaces can be composed of graphics, text, icons, video, and any combination thereof. Optionally, the display panel can be configured using a liquid crystal display (LCD), organic light-emitting diode (OLED), or other similar technologies. The touch panel can be used to collect touch operations performed by the user on or near it (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near the touch panel), generate corresponding operation commands, and execute the corresponding program according to the operation commands. Optionally, the touch panel may include a touch detection device and a touch controller. The touch detection device detects the user's touch location and the signal generated by the touch operation, transmitting the signal to the touch controller. The touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends it to the processor 1101. It can also receive and execute commands from the processor 1101. The touch panel can cover the display panel. When the touch panel detects a touch operation on or near it, it transmits the information to the processor 1101 to determine the type of touch event. Subsequently, the processor 1101 provides corresponding visual output on the display panel based on the type of touch event. In this embodiment, the touch panel and the display panel can be integrated into the touch display screen 1103 to achieve input and output functions. However, in some embodiments, the touch panel and the touch display screen 1103 can be implemented as two independent components to achieve input and output functions. That is, the touch display screen 1103 can also be used as part of the input unit 1106 to achieve input functions.

[0169] The radio frequency circuit 1104 can be used to transmit and receive radio frequency signals to establish wireless communication with network devices or other electronic devices, and to transmit and receive signals with network devices or other electronic devices.

[0170] Audio circuit 1105 can be used to provide an audio interface between a user and an electronic device via a speaker and a microphone. Audio circuit 1105 can convert received audio data into electrical signals and transmit them to the speaker, where the speaker converts them into sound signals for output. Conversely, the microphone converts collected sound signals into electrical signals, which are then received by audio circuit 1105, converted back into audio data, and then processed by processor 1101 before being transmitted via radio frequency circuit 1104 to, for example, another electronic device, or output to memory 1102 for further processing. Audio circuit 1105 may also include an earphone jack to provide communication between peripheral headphones and electronic devices.

[0171] The input unit 1106 can be used to receive input numbers, characters, or user characteristic information (such as fingerprints, iris, facial information, etc.), and to generate keyboard, mouse, joystick, optical, or trackball signal inputs related to user settings and function control.

[0172] Power supply 1107 is used to supply power to various components of electronic device 1100. Optionally, power supply 1107 can be logically connected to processor 1101 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. Power supply 1107 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0173] although Figure 4 As not shown in the diagram, the electronic device 1100 may also include a camera, sensor, wireless fidelity module, Bluetooth module, etc., which will not be described in detail here.

[0174] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0175] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0176] Therefore, embodiments of this application provide a computer-readable storage medium storing a plurality of computer programs, which can be loaded by a processor to execute any of the inkjet printing methods provided in embodiments of this application. The computer program can execute the steps of the following inkjet printing method:

[0177] The ink droplet printing position corresponding to the ink jet groove is determined based on the target film thickness of the substrate, the size information of the ink jet groove in the substrate, the preset ink droplet spacing and the preset maximum film thickness.

[0178] Obtain the inkjet volume corresponding to each inkjet nozzle in the inkjet head, and determine the target distribution relationship based on the inkjet volume;

[0179] The compensation inkjet volume is determined based on the target distribution relationship and the preset distribution relationship, and the ink droplet printing position is compensated for inkjet printing based on the compensation inkjet volume.

[0180] In an optional example, it also includes:

[0181] Based on the target film thickness of the substrate and the size information of the inkjet trough in the substrate, determine the number of target ink droplets to be printed in the inkjet trough.

[0182] Based on the size information of the inkjet trough, the preset droplet spacing, and the preset maximum film thickness, determine the number of rows of ink droplets and the number of droplets per row in the inkjet trough;

[0183] The inkjet trough is divided into an ink droplet arrangement array based on the number of ink droplet rows and the number of ink droplets per row;

[0184] Based on the target number of ink droplets, the number of ink droplet rows, and the number of ink droplets per row, the ink droplet printing position corresponding to the inkjet slot is determined in the ink droplet arrangement array.

[0185] In an optional example, it also includes:

[0186] Based on the number of ink droplet rows and the number of ink droplets per row, a threshold range for the number of ink droplets is calculated;

[0187] The target number of ink droplets is compared with the threshold value of the ink droplet number range, and the target print line is determined in the ink droplet array based on the comparison result and the number of ink droplet rows.

[0188] Based on the target number of ink droplets and the number of ink droplets per row, determine the target print column in the target print row;

[0189] The ink droplet printing position corresponding to the inkjet slot is determined based on the target print row and the target print column.

[0190] In an optional example, it also includes:

[0191] The number of print lines is determined based on the comparison results, and the print line distribution rule is determined based on the number of ink droplet lines.

[0192] The target print line is determined in the ink droplet array based on the number of print lines and the print line distribution rule.

[0193] In an optional example, it also includes:

[0194] The printing column distribution rule is determined based on the number of ink droplets per row;

[0195] Compare the target number of ink droplets with the number of ink droplets per line;

[0196] If the target number of ink droplets is not greater than the number of ink droplets per row, then the target printing column is determined in the target printing row according to the printing column distribution rule;

[0197] If the target number of ink droplets is greater than the number of ink droplets per row, then all print rows and a portion of print rows are determined in the target print rows. All columns in all print rows are determined as target print columns, and the target print columns in the portion of print rows are determined according to the print column distribution rules.

[0198] In an optional example, it also includes:

[0199] Obtain the ink volume corresponding to each ink nozzle in the inkjet head, and calculate the mean and standard deviation of the ink volume corresponding to the inkjet head based on the ink volume corresponding to each ink nozzle.

[0200] Based on the mean inkjet volume and the standard deviation of inkjet volume, the target distribution relationship corresponding to the inkjet head is determined.

[0201] In an optional example, it also includes:

[0202] Obtain the maximum distribution probability of the target in the target distribution relationship, and the preset maximum distribution probability in the preset distribution relationship;

[0203] If the target maximum distribution probability is greater than the preset maximum distribution probability, then the difference between the target maximum distribution probability and the preset maximum distribution probability is calculated, and the compensation inkjet volume is determined based on the preset mapping information and the difference.

[0204] Compensated inkjet printing is performed on the ink droplet printing position based on the compensated inkjet volume.

[0205] Therefore, controlling the film thickness by determining the ink droplet printing position corresponding to the inkjet tank is more accurate than controlling the film thickness by controlling the spacing. Furthermore, by determining the compensation inkjet volume when printing at the ink droplet printing position, the accuracy of inkjet thickness control within the inkjet tank is further improved.

[0206] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0207] The computer-readable storage medium may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0208] Since the computer program stored in the computer-readable storage medium can execute any of the inkjet printing methods provided in the embodiments of this application, the beneficial effects that any of the inkjet printing methods provided in the embodiments of this application can achieve can be realized, as detailed in the preceding embodiments, and will not be repeated here.

[0209] According to one aspect of this application, a computer program product or computer program is also provided, comprising computer instructions stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the electronic device to perform the methods provided in the various optional implementations of the above embodiments.

[0210] In the above embodiments of the inkjet printing apparatus, computer-readable storage medium, inkjet printing system, and computer program product, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes and beneficial effects of the inkjet printing apparatus, computer-readable storage medium, computer program product, inkjet printing system, and their corresponding units described above can be referred to the description of the inkjet printing method in the above embodiments, and will not be repeated here.

[0211] The foregoing has provided a detailed description of an inkjet printing method, apparatus, system, computer-readable storage medium, and computer program product provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An inkjet printing method, characterized in that, The inkjet printing method includes: The ink droplet printing position corresponding to the ink jet groove is determined based on the target film thickness of the substrate, the size information of the ink jet groove in the substrate, the preset ink droplet spacing and the preset maximum film thickness. Obtain the inkjet volume corresponding to each inkjet nozzle in the inkjet head, and determine the target distribution relationship based on the inkjet volume; The compensation inkjet volume is determined based on the target distribution relationship and the preset distribution relationship, and the ink droplet printing position is compensated for inkjet printing based on the compensation inkjet volume. The step of determining the ink droplet printing position corresponding to the inkjet slot based on the target film thickness of the substrate, the size information of the inkjet slot in the substrate, the preset droplet spacing, and the preset maximum film thickness includes: Based on the target film thickness of the substrate and the size information of the inkjet trough in the substrate, determine the number of target ink droplets to be printed in the inkjet trough. Based on the size information of the inkjet trough, the preset droplet spacing, and the preset maximum film thickness, determine the number of rows of ink droplets and the number of droplets per row in the inkjet trough; The inkjet trough is divided into an ink droplet arrangement array based on the number of ink droplet rows and the number of ink droplets per row; Based on the target number of ink droplets, the number of ink droplet rows, and the number of ink droplets per row, the ink droplet printing position corresponding to the inkjet slot is determined in the ink droplet arrangement array.

2. The inkjet printing method according to claim 1, characterized in that, The step of determining the ink droplet printing position corresponding to the inkjet slot in the ink droplet arrangement array based on the target number of ink droplets, the number of ink droplet rows, and the number of ink droplets per row includes: Based on the number of ink droplet rows and the number of ink droplets per row, a threshold range for the number of ink droplets is calculated; The target number of ink droplets is compared with the threshold value of the ink droplet number range, and the target print line is determined in the ink droplet array based on the comparison result and the number of ink droplet rows. Based on the target number of ink droplets and the number of ink droplets per row, determine the target print column in the target print row; The ink droplet printing position corresponding to the inkjet slot is determined based on the target print row and the target print column.

3. The inkjet printing method according to claim 2, characterized in that, Determining the target print line in the ink droplet array based on the comparison results and the number of ink droplet rows includes: The number of print lines is determined based on the comparison results, and the print line distribution rule is determined based on the number of ink droplet lines. The target print line is determined in the ink droplet array based on the number of print lines and the print line distribution rule.

4. The inkjet printing method according to claim 2, characterized in that, The step of determining the target print column in the target print row based on the target ink droplet count and the ink droplet count per row includes: The printing column distribution rule is determined based on the number of ink droplets per row; Compare the target number of ink droplets with the number of ink droplets per line; If the target number of ink droplets is not greater than the number of ink droplets per row, then the target printing column is determined in the target printing row according to the printing column distribution rule; If the target number of ink droplets is greater than the number of ink droplets per row, then all print rows and a portion of print rows are determined in the target print rows. All columns in all print rows are determined as target print columns, and the target print columns in the portion of print rows are determined according to the print column distribution rules.

5. The inkjet printing method according to claim 1, characterized in that, The step of acquiring the inkjet volume corresponding to each inkjet nozzle in the inkjet head and determining the target distribution relationship based on the inkjet volume includes: Obtain the ink volume corresponding to each ink nozzle in the inkjet head, and calculate the mean and standard deviation of the ink volume corresponding to the inkjet head based on each ink volume. Based on the mean inkjet volume and the standard deviation of inkjet volume, the target distribution relationship corresponding to the inkjet head is determined.

6. The inkjet printing method according to claim 1, characterized in that, The step of determining the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship, and performing compensation inkjet printing on the ink droplet printing position based on the compensation inkjet volume, includes: Obtain the maximum distribution probability of the target in the target distribution relationship, and the preset maximum distribution probability in the preset distribution relationship; If the target maximum distribution probability is greater than the preset maximum distribution probability, then the difference between the target maximum distribution probability and the preset maximum distribution probability is calculated, and the compensation inkjet volume is determined based on the preset mapping information and the difference. Compensated inkjet printing is performed on the ink droplet printing position based on the compensated inkjet volume.

7. An inkjet printing device, characterized in that, The device includes: an inkjet head, a drive module, and a measurement module; The calculation module includes a first determining unit, a second determining unit, and a compensation unit; The first determining unit is used to determine the ink droplet printing position corresponding to the ink jet groove based on the target film thickness of the substrate, the size information of the ink jet groove in the substrate, the preset ink droplet spacing and the preset maximum film thickness; The driving module is used to drive the inkjet head to move to the ink droplet printing position; The second determining unit is used to obtain the inkjet volume corresponding to each inkjet nozzle in the inkjet head, and determine the target distribution relationship based on the inkjet volume; The compensation unit is used to determine the compensation inkjet volume based on the target distribution relationship and the preset distribution relationship; The inkjet head is used to perform inkjet printing at each of the ink droplet printing positions, and to perform compensated inkjet printing at the ink droplet printing positions based on the compensated inkjet volume. The first determining unit is further configured to: determine the number of target ink droplets to be printed in the inkjet trough based on the target film thickness of the substrate and the size information of the inkjet trough in the substrate; Based on the size information of the inkjet trough, the preset droplet spacing, and the preset maximum film thickness, determine the number of rows of ink droplets and the number of droplets per row in the inkjet trough; The inkjet trough is divided into an ink droplet arrangement array based on the number of ink droplet rows and the number of ink droplets per row; Based on the target number of ink droplets, the number of ink droplet rows, and the number of ink droplets per row, the ink droplet printing position corresponding to the inkjet slot is determined in the ink droplet arrangement array.

8. An inkjet printing system, characterized in that, The device includes a processor and a memory, the memory storing multiple instructions; the processor loads instructions from the memory to perform the steps of the inkjet printing method as described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a plurality of instructions adapted for loading by a processor to perform the steps of the inkjet printing method as described in any one of claims 1-6.

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